Kelly Van Halen, whose name was Kelly Carter before she married the drummer, makes goods including "blankets, robes and accessories for children and adults," according to her Twitter page.

According to the lawsuit filed in a California court, Alex's ex filed two trademark applications for "Kelly Van Halen" in 2010. ELVH said in the suit, first reported by the Hollywood Reporter, that the trademark "is confusingly similar to [Van Halen's trademarks] in sound, appearance and commercial impression."

The complaint said her use of the name is likely to cause confusion about the goods' origin and dilute and cause unfair competition for the band's brand.

It's common for a wife to take her husband's last name and keep it after a divorce, but this suit raises the question of whether Alex or Eddie Van Halen can prevent the ex-wife from using the name commercially.

ELVH is asking the court to prevent Kelly Van Halen from using the name, and it's also seeking all profits from the alleged infringements.